Speaker



FIG. 1 is a front perspective view of a speaker, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a right side view thereof.

The left side view is a mirror image of the right side view as shown in FIG. 6, and thus not shown.

The bottom view is flat and unornamented, and thus not shown.

The portions shown in broken lines in FIGS. 1-6 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a speaker, as shown and described. 